<template>
  <div class="my-counter">
    <button @click="changeCountFn('-')" type="button" class="btn btn-light" >-</button>
    <!-- readonly：只读 -->
    <input readonly v-model="item.goods_count" type="number" class="form-control inp" >
    <button @click="changeCountFn('+')" type="button" class="btn btn-light">+</button>
  </div>
</template>

<script>
export default {
  props: {
    item: {
      required: true,
      type: Object
    }
  },
  methods: {
    changeCountFn(type){
      if(type=="-"){
        this.item.goods_count = this.item.goods_count>1?this.item.goods_count-1:this.item.goods_count;
      }else {
        this.item.goods_count++
      }
    }
  }
}
</script>

<style lang="less" scoped>
.my-counter {
  display: flex;
  .inp {
    width: 45px;
    text-align: center;
    margin: 0 10px;
  }
  .btn, .inp{
    transform: scale(0.9);
  }
}
</style>